North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: using IRR tools for BGP route filtering

  • From: Danny McPherson
  • Date: Thu Jun 22 10:38:24 2000

> 	AS Path filtering would be much smaller than prefix based filtering.
> Perhaps small enough to work on existing routers. These filters could also
> be built using registry data, from the ASes that make up providers' as-macros.
> 	Not a silver bullet, but probably significantly better than doing
> nothing.

Though it's certainly better than nothing, it does little more than 
ensure AS_PATH sequence and integrity .. it provides no protection 
against invalid announcements.

-danny